Basic Electronics Calculators
Free online calculators for voltage, current, resistance, power, and essential circuit design. Built for students, hobbyists, and engineers.
Smarter Calculations for Better Circuits
Basic electronics calculators help simplify common formulas used in circuit design, prototyping, repairs, and education. Instead of manually solving equations, these tools provide quick and accurate answers for voltage, resistance, current, power, and component values.
Whether you’re designing LED circuits, selecting resistors, or estimating power usage, Matrixon Tools helps you work faster and reduce mistakes.
Designed for beginners and professionals alike, these calculators are useful for electronics learning, Arduino projects, PCB design, and real-world circuit troubleshooting.
FAQs
What is Ohm’s Law used for?
Ohm’s Law is used to calculate voltage, current, or resistance in electrical circuits using the relationship between the three values.
How do I calculate resistor values?
You can use resistor calculators to determine resistance in series, parallel, or for LED current limiting circuits.
What is a voltage divider calculator used for?
It helps calculate output voltage when two resistors are connected in series across an input voltage source.
Why use a power calculator?
Power calculators help estimate wattage requirements, battery drain, and safe component ratings.